Groan
Mrs. Smith needed to have her piano tuned so she asked a friend for a recommendation.
She then made an appointment with the piano tuner, Mr. Oppernockity.
He arrived 2 days later, tuned the piano satisfactorily, and left.
Several days later Mrs. Smith noticed that the piano was terribly out of tune again.
She called the tuner to complain about the tuning and to ask for a return visit to solve the problem.
However, the tuner replied, “I’m sorry ma’am, but Oppernockity only tunes once!”